我有一个按钮设置来将我的gridviews 导出到word。一切正常,除了我找不到启动/取消我modalpopupextender
用来表明正在处理的方法。如果我添加它,单击按钮:
btnExportToWord.Attributes.Add("onclick", "StartProgressBarNoValid()")
它不会取消modalpopupextender
这是我使用的更新面板和 javascript 函数。
function StartProgressBarNoValid() {
var myExtender = $find('ProgressBarModalPopupExtender');
ProgressImg = document.getElementById('MyImage');
setTimeout("ProgressImg.src = ProgressImg.src", 10);
myExtender.show();
return true;
}
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<div>
<cc1:ModalPopupExtender ID="ProgressBarModalPopupExtender" runat="server"
backgroundCssClass="ModalBackground" behaviorID="ProgressBarModalPopupExtender"
TargetControlID="hiddenField1" PopupControlID="Panel1" />
<asp:Panel ID="Panel1" runat="server" Style="display: none; background-color: #C0C0C0;">
<img id="MyImage" src="../Images/Vista_Searching_Bar.gif" alt="" />
<div id="processMessage" style="width:200px;" ><br /><br /> Loading...<br /><br />
</div>
</asp:Panel>
<asp:HiddenField ID="HiddenField1" runat="server" />
</div>
</ContentTemplate>
</asp:UpdatePanel>